Police say WalkerÂ?s former boyfriend, Jerry D. White, 30, broke into WalkerÂ?s house at 2009 Frances St. about 2 a.m. Saturday and shot her sisterÂ?s boyfriend in the face and chest, before abducting Walker and their children.

At a Monday news conference, police identified the shooting victim as Lathie Turnage, 30, of Chicago. They said he is in critical-but-stable condition at Elkhart General Hospital.

Authorities said they believe the children and Walker are alive, but are in serious danger.

White has an extensive criminal history that includes several weapons charges, Detective Sgt. Bill Wargo said Monday.

Cook County, Ill., court records indicate he was charged with aggravated kidnapping and domestic battery in 2003, police said. He pleaded guilty to the domestic battery and was given an 18-month sentence.

Authorities said White has several friends and relatives in Chicago and may have gone there.

Police said they have recovered two vehicles White allegedly used to get away.

An arrest warrant with charges of attempted murder and seven counts of confinement has been issued for White.